problem - printing in windows and linux

[newplayer]

Why can't I use function print() in linux ? In windows I can and in linux I can't:
my function:

void MyWindow::Print()
{
    QPrintDialog x (&printer,this);
    if (x.exec() == QDialog::Accepted)
    {
        textbox -> print (&printer);
    }
}

void MyWindow::Print()
{
    QPrintDialog x (&printer,this);
    if (x.exec() == QDialog::Accepted)
    {
        textbox -> print (&printer);
    }
}

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mistake:

error: ‘class QTextEdit’ has no member named ‘print’

error: ‘class QTextEdit’ has no member named ‘print’

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